SN4 ""

No	Pattern	Freq
1	[adv] [verb] [to-vb] an	464
2	[adv] [adj] [to-vb] an	325
3	[adv] [adj] [to-vb] an	299
4	[adv] [vb pp] [to-vb] an	185
5	[adv] [vb base] [to-vb] an	66
6	[adv] [vb past] [to-vb] an	63
7	[adv] [vb infin] [to-vb] an	54
8	[adv] likely [to-vb] an	47
9	[adv] likely [to-vb] an	47
10	[adv] [adv] [to-vb] an	46
11	[adv] [v-ing] [to-vb] an	46
12	[adv] [vb -s] [to-vb] an	46
13	[adv] [conj] [to-vb] an	46
14	[adv] [subord] [to-vb] an	43
15	[adv] have [to-vb] an	42
16	[adv] [adv] [to-vb] an	39
17	[adv] difficult [to-vb] an	37
18	[adv] difficult [to-vb] an	37
19	[adv] as [to-vb] an	35
20	[adv] try [to-vb] an	35
21	[adv] as [to-vb] an	35
22	[adv] want [to-vb] an	18
23	[adv] seem [to-vb] an	18
24	[adv] able [to-vb] an	17
25	[adv] easy [to-vb] an	17
26	[adv] able [to-vb] an	17
27	[adv] need [to-vb] an	17
28	[adv] have [to-vb] an	16
29	[adv] enough [to-vb] an	15
30	[adv] begin [to-vb] an	15